Researchers found that the [NHS COVID-19 app in England and Wales] did, in fact, accurately translate the duration and proximity of a COVID-19 exposure to a relevant epidemiological risk score. The app assessed a contact’s risk by multiplying the length of contact, the proximity of contact, and the infectiousness of the index casey as determined by how long it had been since the index case started showing symptoms or tested positive.
Omicron won’t be the last variant, and comprehensive strategies are still needed to reduce severe disease, deaths and transmission, according to Maria Van Kerkhove, WHO’s technical lead officer on Covid. She said at a briefing on Tues that countries shouldn’t abandon well-established, life-saving interventions, such as social distancing, mask-wearing, good ventilation and avoiding crowds.
Air passengers arriving in Canada start their mandatory two-week quarantines once they reach their final destination, regardless of how many connecting flights they took, as long...
Experts say Canada could have fared better if it followed 'precautionary principle' early in the pandemic. Some of the experts involved in that inquiry say there was one key lesson learned at the time — which Canada failed...
